But as marvellous as I know it will be to breathe in the grassy air of St James Park on a London summer day, bask in the sun on a Spanish beach, roam the cellars of Bordeaux, soak in the style along Parisian avenues, and eat all the pintxo, tapas, croissants and cheese I can conceive of, I also know, from previous experience, that this nearly-there, just-can't-wait, so-excited-I-can-hardly-breathe-sometimes feeling is one of the best bits about travel.
OK, don't get me wrong. Some of the other best bits about travel are exactly the opposite of this agonising state of anticipation - the thrill of finding yourself in a place that is every bit as awesome as you dreamed it would be, for instance, or the magnificence of a serendipitous moment that is completely unplanned but will forever capture the essence of that particular grand adventure in your memory because it was so much better than you could ever have contrived or even imagined.
But there is something that never gets old about getting ready to go. Not the packing of bags and checking of visas and doing of last minute jobs - because those bits get old pretty fast, let's not kid ourselves - but the circling of dates on calendars, and the casual dropping into conversation of the impending event, and the imagining of all the cool stuff you're about to see and do and eat and hear - there's nothing quite like the feeling those simple things combine to create. In fact, I think I'd feel pretty robbed if someone sent me on a surprise trip tomorrow and I didn't get to experience them (although just in case someone's planning that, I would probably get over it!).
So with 17 sleeps to go, I'm in a fever of excitement - and I'm relishing it!